Apparatus for drying photographs.



C. L. OTTO.

APPARATUS FOR DRYING PHOTOGRAPHS. APPLICATION FILED APR. 1, 191a.

1,082,81 8, Patented Dec. 30, 1913.

2 SHEBT SSHEET 1.

COLUMBIA PLANOORAPH 60., WASHINGTON, D. c.

G. L. OTTO. APPARATUS FOR DRYING PHOTOGRAPHS. APPLICATION FILED APR. 1,1913.

1,082,818, Patented Dec. 30, 1913.

2 SHEBTSSHEI2T 2. /7 5.22.

f/GEJT FIG; 4

Altomey I .CDLUMBIA PLANDGRAPH $0., WASHINGTON, D. C.

CHRISTIAN L. OTTO, OF GREEL-EY, COLORADO.

APPARATUS FOR DRYING PHOTOGRAPHS.

Specification of Letters Patent.

PatenteolDec. 39,1913.

Application filed April 1, 1913. Serial No. 758,277.

To all whom it may concern:

Be it known that I, CHRISTIAN L. O'r'ro, a citizen of the United States,residing at Greeley, in the county of Weld and State of Colorado, haveinvented certain new and useful Improvements in Apparatus for DryingPhotographs; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters andfigures of reference marked thereon, which form a part of thisspecification.

' This invention relates to new and useful improvements in devices fordrying photographs and comprises a simple and eflicient device of thisnature having various details of construction and combinations andarrangements of parts which will be hereinafter fully described, shownin the accompanying drawings and then specifically defined in theappended claims.

My invention is illustrated in the accompanying drawings, in whichFigure 1 is an end view of the apparatus, a part being broken away. Fig.2 is a top plan view.\ Fig. 3 is a central longitudinal sectional view.Fig. 4: is a detail vertical sectional view through one end of thedrying drum and mounting therefor, and-Fig. 5 is a sectional viewshowing a brake mecha nism.

Reference now being had to the details of the drawings by letter, Adesignates a suitable frame of the apparatus upon the supports B ofwhich a rotatable drying cylinder G is mounted, said cylinder beinghollow and provided with a disk D fastened to each end thereof. To oneof said disks is fixed a crank shaft E and to the other end a flangedcollar F, shown clearly in Fig. 4 of the drawings, and which latter ismounted in an aperture in one of the supports B of the frame and rotatestherein and about a tubular shell H, which latter forms a conduitthrough which the electric wires I pass. Suitable insulating pipes K areconnected to the tubular shell H and through which the wire is passed toany suitable source of supply not shown.

In order to ventilate the interior of the cylinder C, apertures J areformed in the disks at the ends of. the cylinder and access may be hadto the interior of the cylinder through an opening regulated by a slide0 in one end of the cylinder. An electric heating coil L is mountedwithin the cylinder, being supported by the pipes N and through whichthe electric wiring passes to the coil. 7 r

A web B, of suitable fabric, is adapted to wind about the cylinder G andupon which web the photographs, designated by letter T and shown in Fig.2, are adapted to be placed preparatory to their being fed forwardbetween the web and the circumference of the cylinder, as shown bydotted lines in the drawings. Said web passes about a reel or cylinderS, mounted upon a crank shaft S, which latter is journaled in suitablebearings in the frame of the apparatus.

A table P is mounted upon the standard P upon one of the supports B andaffords a convenient means for placing a pile of photographs to be driedor for holding the photographs after being dried.

Referring to Fig. 5 of the drawings will be seen a brake mechanism,consisting of asocket member M, movable within a shell M in the supportB and having a rubber filler M which is adapted to be held frictionallyin contact with the disk D forming one end of the cylinder, through themedium of the spring Q which is fastened at Q/ to the support B, thetension of which spring is regulated by an adjusting nut Q upon thescrew Q} and upon which screw the washer Q is mounted and against whichthe nut is adapted to bear.

The operation of my drying apparatus will be readily understood and isas follows :The heat being supplied to the coil through the electricalconnections, the prints are placed upon the web and cylinder C rotatedby the crank E, thus winding up the web with the prints intermediate thesame and the circumference of the cylinder. A reverse movement impartedto the web by winding the cylinder or reel S will cause the web totravel in the opposite direction and the prints may be removedtherefrom.

What I claim to be new is:

1. An apparatus for drying photographic prints comprising a frame havinga hollow rotatable cylinder, a crank shaft fastened to one end of thecylinder and journaled in the frame, a collar fastened to the other endof the cylinder and journaled in said frame,

an insulating tube passing through said collar which forms a bearing forthe latter, a heating coil Within the cylinder, electrical connectionspassing through said pipe and connected to the coil, a reel journaled insuitable bearings upon the frame, and a Web adapted to Wind about saidcylinder and reel.

2. An apparatus for drying photographic prints comprising a frame havinga hollow rotatable cylinder, a crank shaft fastened to one end of thecylinder and journaled in the frame, a collar fastened to the other endof the cylinder and journaled in said frame, an insulating tube passingthrough said collar Which forms a bearing for the latter, a heating coilWithin the cylinder, electrical connections passing through said pipeand connected to the coil, a reel journaled in suitable bearings uponthe frame, a web adapted to Wind about said cylinder and reel, and aspring-pressed buffer brake mounted in the frame and adapted to bearagainst one end of the cylinder.

In testimony whereof I have hereunto aflixed my signature in thepresence of tWo Witnesses.

CHRISTIAN L. OTTO. Witnesses:

J. E. COLEMAN, N. A. Horns.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

